What is 2i-3=2(6-i)+7i as a fraction or decimal or whole number

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What is 2i-3=2(6-i)+7i as a fraction or decimal or whole number

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Khánh Gia 1 year 2021-09-01T08:51:50+00:00 1 Answers 3 views 0

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    2021-09-01T08:52:56+00:00

    Answer:

    i = – 5

    Step-by-step explanation:

    Given

    2i – 3 = 2(6 – i) + 7i ← distribute and simplify right side

    2i – 3 = 12 – 2i + 7i

    2i – 3 = 12 + 5i ( subtract 5i from both sides )

    – 3i – 3 = 12 ( add 3 to both sides )

    – 3i = 15 ( divide both sides by – 3 )

    i = – 5

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )